Tube Amplifier Sound Characteristics

I wish there were a scatter diagram one could put together of tube amp sound qualities. The reason I say this is that today's tube amplification can range from sounding warm and romantic to cool and solid state like.
I like the sound of VTL, Quicksilver and Antique Sound Labs. I am in the market for a tube power amp and as I shop I see where more and more amps do NOT sound like tubes at all. So where would the sound characteristics of the 3 amps I mentioned be? For example I was considering the ARC Ref75SE but owners tell me it is SS sounding. Your thoughts are appreciated.